Osama ALASSIRY's questions

I have a basic squid configuration that connects to the Internet directly, I need a way to use a parent peer depending on the URL.

So for example:

• I configure it to use a local proxy that links it to local machines for any URL with .local TLD
• If a user requests http://www.google.com/ it goes directly to google.com port 80
• If a user requests http://server1.local/ it goes to a machine on the LAN called server1 using the local proxy.

This is a simplified example that could be solved by DNS, but I'm doing something a little more complicated.

I tried googling for results on this but most of the results are irrelevant. Thanks.

We have a transparent proxy setup. I tried looking for traffic shaping in Linux, and all I could find online was to limit traffic by interface (eth0/eth1...).

I need to limit the bandwidth (never exceeding a specific limit) by IP address or IP ranges and I can't find a way to do that.

Is there any way to do that?

I'm using the default configuration of postfix on Ubuntu 9.04, and I've been trying to configure Gmail to send email through my server.

I'm looking for a simple configuration for 10-15 users (like using a password file), but all the tutorials I have found have been too extensive and seem very enterprise-oriented.

I just need to configure postfix with AUTH/TLS that is compatible with gmail.

Can anything be done to get data out of a dead SATA drive, the drive won't even show up on the list of drives when booting the computer?

UPDATE:

The drive was never backed-up. It was an external home-grade MyBook used at an SMB as "storage".

After prying-it open, I tried the freezer trick, and IT WORKS! (you just need to be patient)...

We were able to recover 100% of the data.

I have some USB drives attached to my Ubuntu machine, I was looking for some commands to:

1. Power-Off a drive after umounting it.
2. Power-On and Re-Mount.

Does it make sense to power-off and on a USB hard disk on a daily basis (Power-On, Mount, Backup, Umount, Power-Off)?

I have created iso files by using two commands:

• dd if=/dev/cdrom of=filename
• cp /dev/cdrom filename

What's the difference between the two, both have worked for me.

I had a group of files that I'd like to consistently rename, the files are named things like

"System-Log-01-01-2009-NODATA.txt"
"Something-Log-01-01-2009-NODATA.txt"

And I wanted them as lowercase, yyyymmdd, .log extension

"system.20090101.log"
"something.20090101.log"